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Finding the Fourth Proportional to 22,672.85, 31,287.02 and 12,600.63

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Solution

The fourth proportional to 22,672.85, 31,287.02 and 12,600.63 is: 17,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.85 : 31,287.02 = 12,600.63 : x
  2. Step 2: Convert to fraction form
    22,672.85/31,287.02 = 12,600.63/x
  3. Step 3: Cross multiply
    22,672.85x = 31,287.02 × 12,600.63
  4. Step 4: Simplify right side
    22,672.85x = 394,236,099.82
  5. Step 5: Solve for x
    x = 394,236,099.82/22,672.85
  6. Step 6: Final answer
    x = 17,388.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.